And if it's back to the original condition, nothing to do now except take it back and exchange it for a good working laptop.
I just bought a DELL e7240 from a local retailer, with 4gb of default RAM and I also bought a larger RAM to replace the default one.
I bought Kingston HyperX for Dell Latitude E7240. It is one stick of 8G. I have read that they are compatible: http://www.kingston.com/us/memory/search/Default.aspx?DeviceType=3&Mfr=DEL&Line=Latitude&Model=85016
Now after I installed the new RAM, I try starting my laptop and the fan noise can be heard for 2-3 seconds, then it shuts down and the battery and wireless leds keep flashing every 1 second.
If I try to put back the original memory it doesn't work either.
I think it's too soon to call the seller, as I am hoping that I can still do something to fix this, but I have no clue what.
Does anybody have any idea what might have happened or how can I fix this?